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escaped defect

📖 ISTQB Glossary

Official ISTQB Definition

A defect that is not detected by a test activity that is supposed to find it.

3 Ways to Think About It

💡
The Quick Take

A bug that reached production without being caught.

🔍
Look Closer

Defects that slipped through testing into the hands of users.

🎯
The Bottom Line

The ones that got away - found after release.

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